Elevating-chair.



R. R. SHORE-R.

ELEVATING CHAIR.

APPLICATION FILED MAR. a, 1913 1,088,464. Patented Feb. 24, 1914.

ROBERT R. SHORER, OF GARBER, OKLAHOMA.

ELEVATING-CHAIR.

Specification of Letters Patent.

Patented Feb. 24, 1914.

Application filed March 8, 1913. Serial No. 753.081.

To all whom it may concern e Be it known that I, ROBERT E. SHORER, a citizen of the United States, residing at Garber, in the county of Garfield and 'State of Oklahoma, have invented new and useful Improvements in Elevating-Chairs, of which the following is a specification.

This invention relates to elevating chairs, such as are especially designed for nursery use and for use in barber-shops and the like, or under any condition in which it is de sirable to raise and lower the seat of a chair.

One of the chief aims of the present invention is to provide a chair of the class de-' scribed which embodies downwardly diverging or spreading legs, each of telescopic construction and so braced with relation to each other as to admit of the telescopic .movement of the chair legs, without rendcring the construction as a whole loose-jointed, provision being made for effectively bracing the legs with respect to each other under any adjustment thereof, together with means for locking the sections of the legs under any adjustment in the length thereof.

\Vith the above and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claim hereunto appended.

In the drawings: Figure 1 is a side elevation of a chair embodying the present invention. Fig. 2 is a vertical section taken through the upper sections of the legs at one side of the chair, showing the lower extension leg sections in elevation, and also showing the locking mechanism. Fig. 3 is a bot tom plan view of the chair.

The chair contemplated in this invention is shown as comprising, in the preferred embodiment thereof, four chair legs which diverge or spread downwardly, as shown in Figs. 1 and 2.

Each leg comprises a tubular upper section 1 and an extension section 2 which is being supported by the upper extremities of the members 1.

6 designates the chair back.

The extension leg sections 2 are connected, adjacent to the bottom ends thereof, by means of an adjustable quadrilateral base frame consisting of braces, each embodying telescopic members 7 and 8, the member 7 being tubular, and the member 8 being arranged to slide longitudinally therein, the sections 7 and 8 being attached fixedly at their outer extremities to the appropriate leg extensions 2. In order to fix the adjustment of the sections 7 and 8 with respect to each other, binding screws 9 may be inserted through the tubular sections, so as to bind against the sections 8, which are contained in the tubular sections.

The extension leg sections 2 are provided in their inner faces with ratchet-shaped teeth 1.0 adapted to be engaged by a series of sliding bolts 11. Each of said bolts is mounted to slide in a suitable guide or casing 12 attached to the adjacent tubular leg section 1, adjacent to the bottom thereof, as shown in Fig. 2. In addition, each bolt 11 is provided with an inwardly extending stem 13 having an eye 14 at the inner end thereof, while an expansion spring 15 encircles the stem 13 within the casing and normally presses the bolt 11 into engagement with one of the notches 10. One or more bolt operating cords 16 are attached, preferably to the back of the chair, at the point 17, and pass around guides 18 toward the front of the chair, where such cord or cords pass through the eyes 14 of the front bolts 11, and then back to the eyes 14 of the rear bolts, to which they are attached. It will thus be seen that by pulling on the cord or cords 16, the locking bolts 11 are simultaneously drawn out of engagement with the rack teeth 10, thereby permitting the upper section of the chair to be lowered to any desired extent. In the upward movement of the upper section of the chair, the bolts 11 automatically snap over the rack teeth 10 and sustain the upper chair section in its elevated position, when the desired point has been reached.

Before adjusting the chair in height, the binding screws 9 are all loosened which admits of the telescopic movement of the sections 7 and 8 of the bottom braces. The upper section of the chair is then moved upwardly or downwardly, until the desired point has been reached, whereupon the bolts the sections of the legs against relative lon- 11 are thrown into engagement with the gitudinal movement, and longitudinally exrack teeth to maintain the adjustment and tensibh. braces permanently connected to the the binding screws 9 are then tightened, lower extension leg sections and arranged in thereby thoroughly bracing the lower exsuch relation to each other as to form a tension leg sections relatively. to each other: quadrilateral base frame.

What is claimed is: In testimony whereof I afiix my signature An elevating chair comprising a seat, 1 in presence of two witnesses. downwardly diverging legs attached to the ROBERT R. SHORER. seat and each comprising an upper tubular section and a lower extension section slidable Within the upper section, means for locking I lVitnesses:

BURTON A. GARBER, MARTIN G. Torr. 

